Algebra Examples

$f (x) = 4 x - 5$ , $g (x) = 3 x$

Step 1

Set up the composite result function.

$f (g (x))$

Step 2

Evaluate $f (3 x)$ by substituting in the value of $g$ into $f$ .

$f (3 x) = 4 (3 x) - 5$

Step 3

Multiply $3$ by $4$ .

$f (3 x) = 12 x - 5$